linux-kernel - Re: [PATCH 2/5] x86: Move 32-bit compat syscalls to common location

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Message-ID: <20200221152922.4okzakixvlz5mpoh@isilmar-4.linta.de>
Date:   Fri, 21 Feb 2020 16:29:22 +0100
From:   Dominik Brodowski <linux@...inikbrodowski.net>
To:     Brian Gerst <brgerst@...il.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        the arch/x86 maintainers <x86@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Andy Lutomirski <luto@...nel.org>
Subject: Re: [PATCH 2/5] x86: Move 32-bit compat syscalls to common location

On Fri, Feb 21, 2020 at 08:41:23AM -0500, Brian Gerst wrote:
> On Fri, Feb 21, 2020 at 2:07 AM Dominik Brodowski
> <linux@...inikbrodowski.net> wrote:
> >
> > On Fri, Feb 21, 2020 at 12:09:31AM -0500, Brian Gerst wrote:
> > > --- a/arch/x86/kernel/Makefile
> > > +++ b/arch/x86/kernel/Makefile
> > > @@ -57,6 +57,8 @@ obj-y                       += setup.o x86_init.o i8259.o irqinit.o
> > >  obj-$(CONFIG_JUMP_LABEL)     += jump_label.o
> > >  obj-$(CONFIG_IRQ_WORK)  += irq_work.o
> > >  obj-y                        += probe_roms.o
> > > +obj-$(CONFIG_X86_32) += sys_ia32.o
> > > +obj-$(CONFIG_IA32_EMULATION) += sys_ia32.o
> >
> > That doesn't look nicely...
> 
> Do you have a better suggestion?  That's similar to how tls.o is
> already handled.

Besides modifying Kconfig? No, unfortunately not.

Thanks,
	Dominik